blob: 45eeba77b56e596149a84805adc2c6657953e7d9 [file] [log] [blame]
// Copyright 2019 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package server
import (
"context"
"golang.org/x/tools/gopls/internal/file"
"golang.org/x/tools/gopls/internal/golang"
"golang.org/x/tools/gopls/internal/protocol"
"golang.org/x/tools/gopls/internal/template"
"golang.org/x/tools/internal/event"
"golang.org/x/tools/internal/event/tag"
)
func (s *server) DocumentHighlight(ctx context.Context, params *protocol.DocumentHighlightParams) ([]protocol.DocumentHighlight, error) {
ctx, done := event.Start(ctx, "lsp.Server.documentHighlight", tag.URI.Of(params.TextDocument.URI))
defer done()
fh, snapshot, release, err := s.fileOf(ctx, params.TextDocument.URI)
if err != nil {
return nil, err
}
defer release()
switch snapshot.FileKind(fh) {
case file.Tmpl:
return template.Highlight(ctx, snapshot, fh, params.Position)
case file.Go:
rngs, err := golang.Highlight(ctx, snapshot, fh, params.Position)
if err != nil {
event.Error(ctx, "no highlight", err)
}
return toProtocolHighlight(rngs), nil
}
return nil, nil // empty result
}
func toProtocolHighlight(rngs []protocol.Range) []protocol.DocumentHighlight {
result := make([]protocol.DocumentHighlight, 0, len(rngs))
kind := protocol.Text
for _, rng := range rngs {
result = append(result, protocol.DocumentHighlight{
Kind: kind,
Range: rng,
})
}
return result
}